:root{--bg:#f5f5f7;--surface:#fff;--text:#222126;--muted:#696873;--line:#e7e5eb;--accent:#7c3aed;--grad:linear-gradient(130deg,#8A2BF8,#B529CA 40%,#DD2276 80%,#E3245E);color-scheme:light}
@media(prefers-color-scheme:dark){:root{--bg:#0b0b0f;--surface:#1c1c1e;--text:#f3f1f7;--muted:#b5b1be;--line:#35323b;--accent:#c3a1ff;color-scheme:dark}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
header,main,footer{max-width:760px;margin:0 auto;padding:0 20px}
header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:22px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:650;letter-spacing:-.02em;font-size:18px}
.mark svg{width:30px;height:30px;display:block}
nav a{margin-left:18px;color:var(--muted);font-size:15px}
main{padding-top:24px;padding-bottom:40px}
h1{font-size:clamp(30px,6vw,44px);line-height:1.1;letter-spacing:-.035em;margin:24px 0 14px}
h2{font-size:20px;letter-spacing:-.02em;margin:34px 0 8px}h3{font-size:16px;margin:20px 0 4px}
p,li{color:var(--text)}.lead{font-size:19px;color:var(--muted);max-width:620px}.muted{color:var(--muted);font-size:14px}
ul{padding-left:20px}li{margin:4px 0}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px;margin:30px 0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:18px 18px 8px}
.card h3{margin-top:0}.card p{color:var(--muted);font-size:15px}
.hero-mark svg{width:84px;height:84px;display:block;border-radius:24px;box-shadow:0 10px 30px rgba(124,58,237,.18)}
.badge{display:inline-block;margin-top:8px;padding:8px 14px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:14px;color:var(--muted)}
details{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px 18px;margin:10px 0}
summary{cursor:pointer;font-weight:600}details p{color:var(--muted);margin:10px 0 2px}
article+article{border-top:1px solid var(--line);margin-top:40px;padding-top:10px}
html.js article+article{border:0;margin:0;padding:0}
footer{border-top:1px solid var(--line);padding-top:18px;padding-bottom:40px;color:var(--muted);font-size:13px}
.langs button{font:inherit;font-size:13px;border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:999px;padding:5px 11px;margin:0 6px 6px 0;cursor:pointer}
.langs button[aria-pressed=true]{color:var(--text);border-color:var(--accent)}
html.js [data-lang]{display:none}html.js [data-lang].on{display:revert}